79 



included keys to genera and species, adapted from Britton and 

 Brown's "Illustrated Flora." In matters of nomenclature and 

 taxonomy also the author in the main has followed this work, but 

 the taxonomic treatment of a number of families or genera has 

 been contributed by various specialists. In treating the re- 

 spective species there is given (i) the habitat, (2) the geographical 

 range (after Britton and Brown), and (3) the "distributional 

 trend" for the states of Connecticut and New Jersey and those 

 parts of New York and Pennsylvania included within the range 

 of the work. As a rule this data is followed by a statement 

 regarding the presence or absence of the species on the different 

 geological formations (Tertiary, Cretaceous, and "Older Forma- 

 tions") and its distribution with respect to the length of the 

 growing season and elevation above sea-level. Introduced 

 species are included in the body of the catalogue, and species 

 reported as waifs are indicated in small type. 



For Connecticut the statements regarding the distribution of 

 various species are not always in accord with the observations 

 of local botanists. A few of the discrepancies noted in com- 

 paring the present work with the Connecticut catalogue* are 

 as follows. Some species are much more restricted than the 

 author indicates, e. g., Dryopteris Goldieana, Picea rubens, Poly- 

 codium stamineum, Viburnum prunifolium, and Lobelia siphilitica; 

 while Carex setacea and Cerastium viscosum are not recorded at 

 all in the Connecticut catalogue. Other species are much com- 

 moner than is indicated, e. g., Picea mariana, Juncus brevicaudatus , 

 Blephariglottis grandiflora, and Sanicula trijoliata. The distribu- 

 tional trends in Connecticut of Asplenium montanum, Rhododen- 

 dron maximum, and Lobelia Dortmanna are southeastward, not 

 northwestward; Lonicera coerulea, given as "increasing northwest- 

 ward," is recorded only from the east; while five of the seven 

 recorded stations for Solidago Elliottii, cited as "Common along 

 the coast, decreasing and perhaps wanting inland," are in the 

 interior. A few Connecticut records apparently have been 

 overlooked entirely, viz., Carex laxiflora leptonervia, Juncus 

 brachycephalus, Trillium grandiflortcm, Castalia tuberosa, Aquilegia 



* Catalogue of the flowering plants and ferns of Connecticut. Bull. State Geol. 

 & Nat. Hist. Survey Connecticut, Bull. 14: 1-569. 1910. 



